Gill at Brashear Lens- Swathmore Telescope, July 13, 1916.

Gill at Brashear Lens- Swathmore Telescope, July 13, 1916.

Pluto; Planet X; Astronomy; Planetary Discovery; Gill, Thomas B.; Lowell Observatory; Flagstaff.

Photograph of Thomas Gill at the Brashear Lens of the Swathmore Telescope in 1916. Gill was involved in the first phase of the search for Planet X and had captured several images of Pluto in 1915 using this telescope, though he was unaware at the time.

Unknown.

1916-07-13

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Black and white photograph

Image

Pluto Collection. l_0204.gif.